Ivesia lycopodioides
Ivesia lycopodioides var. scandularis
club-moss ivesia, clubmoss mousetail
clubmoss ivesia, clubmoss mousetail, White Mountains ivesia
decumbent to erect, 0.3–3 dm.
decumbent to ascending, 0.5–1.5 dm.
tightly to loosely cylindric, 1–15 cm; sheathing base glabrous abaxially;
petiole 0.5–4 cm, hairs 0.2–1 mm;
leaflets 10–35 per side, 1–8 mm, glabrous or short-hirsute, minutely glandular, lobes (2–)4–8(–10), linear to obovate or ± orbiculate, apex sometimes setose.
3–8 cm;
leaflets tightly overlapping, short-hirsute, lobes obovate, 1–3 mm, apical setae (0–)0.5–1(–2) mm.
0–2(–3), not paired.
0–1.
3–20(–25)-flowered, (0.5–)1–2.5(–3.5) cm diam.;
glomerules usually 1.
usually ± capitate, 3–15(–20)-flowered, 1–2(–3) cm diam.
(0.5–)1–7(–11) mm.
6–12 mm diam.;
epicalyx bractlets oblong to oval, 0.8–2.5(–3) mm;
hypanthium shallowly cupulate, 1–2 × 2.5–5 mm;
sepals (1.8–)2–4(–4.5) mm, obtuse to acute;
petals golden yellow, obovate, 2–5 mm;
stamens 5, filaments 0.8–2 mm, anthers yellow, 0.6–0.8 mm;
carpels (5–)8–15(–18), styles 1–3 mm.
6–12 mm diam.;
petals broadly obovate, 3–5 × 2–3 mm;
filaments 1.2–1.5 mm;
styles 2–3 mm.
greenish tan to light brown, 1.2–1.5 mm.
Ivesia lycopodioides
Ivesia lycopodioides var. scandularis
Varieties 3 (3 in the flora).
The three varieties of Ivesia lycopodioides are for the most part readily distinguished, though intergradation is known. The high-elevation var. lycopodioides extends farthest north; var. scandularis is the only variety in the White Mountains. Variety megalopetala is found mostly at somewhat lower (subalpine) elevations and generally has a more southern range.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Variety scandularis is the only variety that occurs in the White Mountains of Inyo and Mono counties, California; scattered populations occur also on the eastern side of the Sierra Nevada. Leaflet lobes are intermediate in size between those of the other two varieties and usually are tipped with a single bristle to 2 mm.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaflets short-hirsute, apical setae (0–)0.5–1(–2) mm; White Mountains and c Sierra Nevada. | var. scandularis |
1. Leaflets glabrous or sparsely short-hirsute, apical setae 0–0.5 mm; Sierra Nevada and Sweetwater Mountains | → 2 |
2. Leaflet lobes ± orbiculate, ± 1 mm; petals 2–3 × 1 mm. | var. lycopodioides |
2. Leaflet lobes linear to oblanceolate, 2–8 mm; petals 3–5 × 2–4 mm. | var. megalopetala |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
